FLYINGHIGHER
PADI
Open
Water
Diver
Final
Assessment
If
an
object
is
neutrally
buoyant
in
fresh
water ,
the
same
object
placed
into
salt
water
would...
-
ANS
Float
I
blow
up
a
balloon,
tie
it
off,
and
take
it
to
the
bottom
of
the
swimming
pool.
What
will
happen
to
the
balloon
and
the
air
inside
it?
-
ANS
The
balloon
will
get
smaller
and
the
air
inside
the
balloon
will
be
more
dense
I
turn
a
glass
upside
down,
trap
the
air
in
it
by
putting
it
in
water ,
and
then
I
take
the
glass
down
to
10
m/33
ft.
The
air
space
would...
-
ANS
Become
half
the
size
it
was
at
the
surface
If
I
am
not
able
to
equalize
my
body
air
spaces,
it
may
be
because
I
have...
-
ANS
A
cold,
allergy
or
another
medical
problem
If
my
ears
or
sinuses
hurt
while
I
am
descending,
it
usually
means...
-
ANS
I
am
feeling
a
squeeze
and
need
to
equalize
The
best
place
for
me
to
position
an
alternate
air
source
is...
-
ANS
In
the
triangle
area
formed
by
my
chin
and
the
lower
corners
of
my
rib
cage FLYINGHIGHER
Lung
overexpansion
injuries
can
be
caused
by...
-
ANS
Holding
my
breath
while
scuba
diving
If
my
cylinder
of
air
lasts
60
minutes
while
I
am
at
the
surface
breathing
normally ,
assuming
all
else
is
the
same,
how
long
will
it
last
at
20
m/66
ft
breathing
normally?
-
ANS
20
minutes
How
often
should
I
take
my
scuba
cylinder
to
be
visually
inspected
by
my
dive
center?
-
ANS
Once
a
year
The
difference
between
DIN
values
and
yoke
valves
is
that
DIN
valves...
-
ANS
Have
threaded
openings
to
screw
the
regulator
into
Which
of
the
following
is
not
part
of
proper
care
for
my
scuba
cylinder?
-
ANS
Keep
some
air
in
it
Refer
to
the
regulator
picture
on
the
right.
Each
regulator
part
has
a
number
next
to
it.
Please
choose
the
correct
numeric
order
from
the
choices
below
-
ANS
1.
Regulator
first
stage,
2.
regulator
second
stage,
3.
alternate
air
source
second
stage,
4.
low
pressure
inflator
hose
for
the
BCD,
5.
instrument
console/gauges/computer
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